It's been till now, that I -still- have NOT recieved another payment, AND I have to keep asking for updates, otherwise she just ignores the fact she owes me money. I've by now told her to keep her money, after she keeps telling me she has no job, and is currently paying for physical therapy.
There's a couple of other artists she owes money to now, and has still yet to pay them (Keitelwolf and NiobeNox).
I would highly suggest not taking a commission from her, unless you get the money upfront.
Editing with some note screenshots. Unfortunately this is all I have now.
Here's the 3 paypal transactions I got from her. One 2 for shipping and one payment.